Cactus burner



I Jul 15, 1941. T. PLOCH 2,249,398

CACTUS BURNER Filed Oct. 4, 1938 Patentecl July 15, 1941 UETED ENTOFFICE 1 Claim.

My present invention relates to improvements in cactus burners such asis disclosed in my United States Patent No. 1,058,900, dated April 15,1913, and is an improvement on that portion of the invention which isreferred to in said patent as the burner proper.

It has been found that in the use of the device set forth in the patentmentioned there is a tendency for the outlet orifice of the burner tobecome clogged with scale, carbon, sediment, etc., necessitating more orless frequent cleaning. The present invention, therefore, has for itsprincipal object to overcome this objectionable feature by providing aburner nozzle so constructed as to provide means whereby foreign mattersuch as that mentioned will be trapped and prevented from entering thefuel discharge tip of the nozzle from which trap it may be removed whendesired.

In the drawing:

Figure 1 represents a side elevation of my complete cactus burner,

Figure 2 is a perspective view of the burner portion of the device withthe casing thereof removed,

Figure 3 is a vertical section of the nozzle portion of the burner withthe discharge tip in elevation,

Figure 4 is a perspective view of the discharge tip, and

Figure 5 is a vertical section of the same.

In the drawing, lil designates the fuel tank portion of my cactusburner, which tank is provided with a cap-controlled filling opening ll.Connected to the tank for supporting the same when in use is a strap [2adapted to pass over a shoulder of the operator. Also connected to thetank is an air pump 13 for maintaining air pressure within the tank andupon gasoline or similar liquid fuel contained therein.

Leading from the tank Ill is a pipe l4 provided with a valve [5 forcontrolling the flow of fuel therethrough. Removably secured to theouter end of the pipe M is the burner portion of my cactus burningdevice, which burner portion comprises a metal pipe having a forwardlyextending portion 16 reversely bent into a loop I! from which thatportion of the pipe indicated at 18 extends substantially parallel tothe portion l6, and screwed upon the upper or free end of the portion l8and extending at right angles thereto is the burner nozzle l9 having adischarge tip 20. By referring to the drawing it will be seen that thetip 23 is so disposed as to discharge fuel between the portions 16 andI8 and the loop ll whereby when the fuel is ignited the variousconvolutions of the pipe will be maintained in a heated condition, thusconverting the liquid fuel passing therethrough into combustible gas, aswill be understood. To retain the burning fuel against said convolutionsand to provide tion.

As will be noted by referring to Figure 3, the nozzle comprises atransversely extending portion 23 which connects two hollow end portions24 and 25 extending at right angles thereto in parallel relation, theinteriors of which end portions are connected by a longitudinal channel23a passing through the portion 23. Corre-' sponding ends of each of theend portions are open and each is interiorly threaded, the end portion24 being thus screwed upon the free end of the pipe portion 18, and thethreaded opening of the portion 25 having the discharge tip 20 screwedthereinto.

The discharge tip 20 comprises an exteriorly threaded plug adapted to bescrewed into the end portion 25 as shown, which plug is bored throughaxially as at 26 to communicate at one end with the interior of theburner head and to provide at its other end an outlet for the fuel,which outlet is enlarged by countersinking, as indicated at 26". Theinner end of the plug portion of the burner tip is somewhat reduced indiameter as at 21 and is provided with a transverse groove 28 across'itsinner end face from side to side which groove intersects the bore 26 andextends the full length of the reduced portion.

As will be noted, the reduced portion 21 is spaced from the inner wallof the end portion 25, whereby said reduced portion is surrounded by apocket 29 which serves as a trap to catch any foreign matter that may becarried to the tip by the fuel and that would otherwise clog the bore26. This foreign matter may be removed easily by unscrewing thedischarge tip.

What ,is claimed is:

A nozzle for cactus-burners comprising end portions having parallelthreaded bores, a portion connecting said end portions at right anglesthereto and having a passage therethrough in communication with thebores of the end portions, the threaded bore of one endportion providingmeans for attaching a fuel pipe, and a discharge tip threaded into thebore of the other end portion, said tip having an axial boretherethrough, said tip having a reduced portion extending into the boreof its supporting end portion and spaced from its inner wall inoverlapping relation to an end of the passage through said connectingportion whereby to provide a sediment trap, said axial bore having anenlarged outer end portion, and said reduced portion having a transverseslot extending thereacross throughout its length and intersecting saidaxial bore.

ALEX T. PLOCH.

